OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

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Announcements

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hwOS TECH: New Firmware 3.37

Last post by dadefay « 14 Oct 2026, 15:59
Replies: 6
by heinrichsweikamp » 31 May 2026, 16:54

6 Replies

73484 Views

Last post by dadefay
14 Oct 2026, 15:59
hwOS Sport: New Firmware 10.97

Last post by heinrichsweikamp « 24 May 2026, 16:23

by heinrichsweikamp » 24 May 2026, 16:23

0 Replies

73877 Views

Last post by heinrichsweikamp
24 May 2026, 16:23
Using Subsurface to update BLE-only OSTC

Last post by heinrichsweikamp « 09 Apr 2026, 10:22

by heinrichsweikamp » 09 Apr 2026, 10:22

0 Replies

94560 Views

Last post by heinrichsweikamp
09 Apr 2026, 10:22
New registered user? Please read.

Last post by heinrichsweikamp « 14 Feb 2024, 10:30

by heinrichsweikamp » 14 Feb 2024, 10:30

0 Replies

229693 Views

Last post by heinrichsweikamp
14 Feb 2024, 10:30
New OSTC Companion 3.2.1

Last post by gordon mackie « 18 Jun 2025, 17:03
Replies: 12
by heinrichsweikamp » 08 Jan 2020, 14:54

12 Replies

189340 Views

Last post by gordon mackie
18 Jun 2025, 17:03
FAQ: Batteries in the OSTC plus

Last post by heinrichsweikamp « 19 Sep 2023, 12:48
Replies: 1
by heinrichsweikamp » 07 May 2019, 17:44

1 Replies

149104 Views

Last post by heinrichsweikamp
19 Sep 2023, 12:48
OSTC Tools for Windows - HWOS Config for Android

Last post by Rob « 10 Apr 2026, 13:20
Replies: 38
by Rob » 03 Aug 2016, 18:35
1

2
38 Replies

937055 Views

Last post by Rob
10 Apr 2026, 13:20
Updating OSTC 3, sport, Plus, cR and OSTC 2 - HowTo

Last post by jp01000 « 14 May 2025, 17:58
Replies: 6
by heinrichsweikamp » 02 Feb 2015, 09:56

6 Replies

212008 Views

Last post by jp01000
14 May 2025, 17:58

Topics

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Last post

OSTC Plus Saftey Stop wird nicht angezeigt

Last post by Ralph « 11 Jun 2024, 06:22
Replies: 4
by Bubblemanu » 07 Jun 2024, 13:17

4 Replies

14672 Views

Last post by Ralph
11 Jun 2024, 06:22
OTSC Sport did not start with 3.7 volt rechargeable battery

Last post by wedge « 05 Jun 2024, 21:30
Replies: 3
by wedge » 30 May 2024, 14:15

3 Replies

12507 Views

Last post by wedge
05 Jun 2024, 21:30
Firmware update

Last post by kwolf « 17 May 2024, 17:20
Replies: 2
by kwolf » 17 May 2024, 16:26

2 Replies

14009 Views

Last post by kwolf
17 May 2024, 17:20
OSTC Plus Bluetooth Pairing problem - Android

Last post by Tobias-00 « 08 May 2024, 23:50
Replies: 18
by Nowhereman » 26 Apr 2020, 13:26

18 Replies

110738 Views

Last post by Tobias-00
08 May 2024, 23:50
Button sensitivity OSTC2 fw 3.18

Last post by hannes « 05 May 2024, 22:00
Replies: 2
by hannes » 09 Jun 2022, 08:59

2 Replies

90759 Views

Last post by hannes
05 May 2024, 22:00
Gas cont. and GF in BO in CCR mode

Last post by Ralph « 05 May 2024, 06:50
Replies: 3
by mobu » 04 May 2024, 13:20

3 Replies

11303 Views

Last post by Ralph
05 May 2024, 06:50
Button's problem

Last post by Stardrowned « 30 Apr 2024, 14:35
Replies: 5
by Sly » 17 Apr 2023, 11:14

5 Replies

23186 Views

Last post by Stardrowned
30 Apr 2024, 14:35
hwOS TECH: New Firmware 3.21

Last post by heinrichsweikamp « 29 Apr 2024, 12:45
Replies: 8
by heinrichsweikamp » 31 May 2023, 11:21

8 Replies

91254 Views

Last post by heinrichsweikamp
29 Apr 2024, 12:45
Compass - bearing

Last post by DidierF95 « 24 Apr 2024, 19:45
Replies: 2
by DidierF95 » 19 Apr 2024, 19:12

2 Replies

60138 Views

Last post by DidierF95
24 Apr 2024, 19:45
Feature request: safety stop depth adjustment

Last post by heinrichsweikamp « 02 Apr 2024, 18:21
Replies: 1
by Walde » 02 Apr 2024, 16:46

1 Replies

53962 Views

Last post by heinrichsweikamp
02 Apr 2024, 18:21
Uhrzeit

Last post by heinrichsweikamp « 12 Mar 2024, 13:10
Replies: 4
by kwolf » 09 Mar 2024, 10:57

4 Replies

12856 Views

Last post by heinrichsweikamp
12 Mar 2024, 13:10
Gaswechsel im Tauchplan

Last post by Wokpyromane « 06 Feb 2024, 10:18
Replies: 4
by Wokpyromane » 03 Feb 2024, 18:16

4 Replies

12323 Views

Last post by Wokpyromane
06 Feb 2024, 10:18
Letzter TG

Last post by Wokpyromane « 03 Feb 2024, 18:43
Replies: 2
by Wokpyromane » 03 Feb 2024, 17:43

2 Replies

10582 Views

Last post by Wokpyromane
03 Feb 2024, 18:43
V10.76 does not update

Last post by heinrichsweikamp « 03 Feb 2024, 14:39
Replies: 1
by Juhani » 31 Jan 2024, 20:33

1 Replies

10364 Views

Last post by heinrichsweikamp
03 Feb 2024, 14:39
Kompass

Last post by umostcsport « 09 Jan 2024, 19:36
Replies: 1
by MaMi » 08 Jan 2024, 22:02

1 Replies

50587 Views

Last post by umostcsport
09 Jan 2024, 19:36
OSTC Plus begin dive strange display

Last post by bantam_w « 29 Nov 2023, 15:46
Replies: 3
by bantam_w » 27 Nov 2023, 10:02

3 Replies

33263 Views

Last post by bantam_w
29 Nov 2023, 15:46
Feature request: Normal stopwatch

Last post by heinrichsweikamp « 21 Nov 2023, 11:45
Replies: 1
by Leonvank » 19 Nov 2023, 02:09

1 Replies

44298 Views

Last post by heinrichsweikamp
21 Nov 2023, 11:45
Dekogas während der Simulation hinzufügen

Last post by swissdiving « 18 Nov 2023, 21:10
Replies: 6
by kwolf » 09 Nov 2023, 10:39

6 Replies

88073 Views

Last post by swissdiving
18 Nov 2023, 21:10
Silicon sleeve

Last post by Acorchia « 13 Nov 2023, 12:30
Replies: 37
by jak » 05 Aug 2015, 20:43
1

2
37 Replies

426059 Views

Last post by Acorchia
13 Nov 2023, 12:30
OTSC+ (Sport) schaltet sich nicht ein

Last post by ThK79 « 09 Nov 2023, 15:52
Replies: 4
by ThK79 » 09 Nov 2023, 14:29

4 Replies

47274 Views

Last post by ThK79
09 Nov 2023, 15:52
Deko time at 6m countdown is much longer than shown

Last post by mobln89 « 30 Oct 2023, 13:03
Replies: 4
by mobln89 » 30 Oct 2023, 12:25

4 Replies

61772 Views

Last post by mobln89
30 Oct 2023, 13:03
Firmware 3.20

Last post by Regthing « 13 Oct 2023, 03:34
Replies: 5
by Regthing » 14 Oct 2022, 21:23

5 Replies

45415 Views

Last post by Regthing
13 Oct 2023, 03:34
Understanding bailout values in simulation mode

Last post by mobu « 10 Oct 2023, 17:07
Replies: 2
by mobu » 08 Oct 2023, 12:12

2 Replies

19042 Views

Last post by mobu
10 Oct 2023, 17:07
Safety stop on OSTC 2 firmware 10.75

Last post by heinrichsweikamp « 09 Oct 2023, 16:56
Replies: 3
by jensen.flemming » 08 Oct 2023, 22:57

3 Replies

50283 Views

Last post by heinrichsweikamp
09 Oct 2023, 16:56
OSTC Sport - Unable to connect on Bluetooth for Firmware Upgrade

Last post by gr3yw0lf « 05 Oct 2023, 07:50
Replies: 13
by penangboy » 26 Aug 2023, 12:16

13 Replies

117107 Views

Last post by gr3yw0lf
05 Oct 2023, 07:50

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